Image sensor based optical reader

An optical reader for reading target indicia, said optical reader comprising:

• an imaging subsystem including an image sensor and a lens assembly for focusing light on said image sensor;
• a control circuit in communication with said imaging subsystem;
• and
• a multiple color emitting illumination subsystem for directing light toward a target, said illumination subsystem being in communication with said control circuit, said illumination subsystem comprising at least two independently drivable light emitting elements;
• wherein said imaging subsystem includes a color image sensor, wherein said control circuit is adapted to sense a color present in said target using the color image sensor, and wherein said control circuit is further adapted to change a color emitted by said illumination subsystem in response to said color present.

An optical reader for reading target indicia, said optical reader comprising:

• an imaging subsystem including an image sensor and a lens assembly for focusing light on said image sensor;
• a control circuit in communication with said imaging subsystem;
• and
• a multiple color emitting illumination subsystem for directing light toward a target, said illumination subsystem being in communication with said control circuit, said illumination subsystem comprising at least two independently drivable light emitting elements;
• wherein said control circuit is adapted to change a color emitted by said illumination subsystem when an operating mode of said reader changes from a decoding attempt mode to a successful decode mode, so that a change in color emitted by said illumination subsystem indicates a good read.

An optical reader for reading target indicia, said optical reader comprising:

• an imaging subsystem including an image sensor and a lens assembly for focusing light on said image sensor;
• a control circuit in communication with said imaging subsystem;
• and
• a multiple color emitting illumination subsystem for directing light toward a target, said illumination subsystem being in communication with said control circuit, said illumination subsystem comprising at least two independently drivable light emitting elements;
• wherein said control circuit is adapted to change a color emitted by said illumination subsystem from a first color to a second color prior to a second decode attempt, if a first decode attempt using said first color is unsuccessful.